Medium Regional Airport • Jacksonville, FL, United States
Elevation: 15 ft (5 m) • 30.3911, -81.4247
Naval Station Mayport / Admiral David L McDonald Field (KNRB / NRB) is a medium regional airport serving Jacksonville, FL, United States, situated at an elevation of 15 ft (5 m) above sea level. Local magnetic variation is 7.1° West. The airport has 2 runways, with the longest measuring 8,001 feet.
METAR KNRB 202152Z 03011KT 10SM BKN250 21/08 A3023 RMK AO2 SLP234 T02060083
TAF KNRB 201500Z 2015/2115 05015G25KT 9999 BKN250 QNH3015INS FM210000 07010KT 9999 SCT250 QNH3020INS TX23/2020Z TN14/2111Z FN20022
| Designator | Length | Width | Surface | Heading |
|---|---|---|---|---|
| 05 | 8,001 ft | 200 ft | Asphalt | 43° |
| 23 | 8,001 ft | 200 ft | Asphalt | 223° |
METAR (Meteorological Aerodrome Report) is the standard format for reporting current weather conditions at airports worldwide. Issued every 30–60 minutes, it includes wind direction and speed, visibility, sky condition and cloud heights, temperature, dewpoint, and altimeter setting. Special METARs (SPECI) are issued when conditions change significantly.
TAF (Terminal Aerodrome Forecast) provides a weather forecast for the area within 5 nautical miles of an airport, valid for 24–30 hours. Issued every 6 hours by national weather services, TAFs use FM (from), TEMPO (temporary), BECMG (becoming), and PROB (probability) groups to describe changing conditions.
Flight Categories: VFR ceiling >3,000 ft & vis >5 SM MVFR 1,000–3,000 ft or 3–5 SM IFR 500–1,000 ft or 1–3 SM LIFR <500 ft or <1 SM